Teknetics Delta 4000 Review

Teknetics Delta 4000
Very Good
Metal Detector
  • Country US
  • Released -
  • Warranty 5 years
  • Additional
  • Headphones included

Best for

  • Coins
  • Relics
  • Kids
  • Beginners

Teknetics Metal Detectors had made Delta 4000 first of all for noobs and beginner level detectorists. While there are no particularly outstanding features about Teknetics Delta 4000 metal detector, its being standard and offering all usual functions for this segment is actually a benefit. When you are a newbie, having a very fancy machine is only good for boasting and impressing your friends. In the field, you’re more likely to scratch your head trying to even make head or tail of the complicated settings.

All Teknetics Delta 4000 reviews and feedback from real users state that it is easy to use. It follows the principle “switch on and search”, and it brings pretty much lots of finds that are within its reach and capability. The majority of positive feedback this machine has from US detectorists, and it seems to become the next favourite of the US treasure hunting noobs.

Rating Explanations
All Purpose
Key Features
Easy to Use
Reviewed by
Michael Moore
  • very affordable
  • 5 years warranty
  • lengthy battery life
  • pinpointer available
  • switch on and go technology
  • easy to learn
  • comparatively heavy
  • two primitive search modes besides pinpoint
  • no volume control
  • Technology: VLF Single Frequency
  • Number of frequencies: 1
  • Frequencies: 7.8 kHz
  • Search Coil: 8"
  • Search Coil Type: Concentric
  • Waterproof: Coil only
  • Updatable Software: No
  • VDI (Target ID): Yes
  • Search Modes: 2
  • Search Mode Types: All Metal / Discrimination
  • Ground Balance: Fixed
  • Pinpoint Mode: Yes
  • Audio Tones: 3
  • Batteries: 9V PP3
  • Length (min-max): Adjustable
  • Weight:2.6 lb
  • Warranty: 5 years

Teknetics Delta 4000 Key Features

Concentric Coil

Due to two wires, inner and outer, such coil provides accurate pinpointing, despite the fact it needs more overlapping when sweeping.


Helps the detectorist to save effort and time digging exactly where the target is, and prevents damaging the target with digging tools.

Notch Control

This feature cuts down signals from certain groups of metals, to highlight signals only from potentially valuable objects.

Teknetics Delta 4000 Overview

While there is obviously nothing supernatural about the tech specs of this device, you still get a bunch of opportunities for the small money you pay. This machine, while primitive at first sight, will enable even the person who has their hands on the detector for the first time to quickly learn this skill. While it will take time to actually interpret the signals properly, and manage to find something really decent in the field, the beginner detectorist will at least be saved from frustration trying to cope with the settings.

Delta 4000 by Teknetics has the following specifications:

Search Modes

There are two main search modes plus Pinpoint. Pinpoint is always good to have included right into the metal detector, especially for the beginner who may be reluctant to purchase another item. Yet, most detectorists quickly find out they actually need a pinpointer (if they don’t have one) to actually be able to dig out small targets. So, having it in your device immediately is pretty handy.

The All Metal mode is generic search mode reacting to all metal items you stumble across in the field. For sure, using this mode means you will have to dig out a lot of trash, especially during your first search sessions. However, the only way to improve your skill is through practical learning. Sometimes, All Metal mode is very handy.

Discrimination mode, on the other hand, helps filter signals received from trash. You have a higher chance of spotting something valuable, plus don’t forget you have other settings that narrow down the sensitivity to objects. You will be able to ignore all trash and junk metals, which is especially useful in highly littered areas.

To be honest, having only two those modes is not much. Many other brands offer newbie level metal detectors that at least have Field/Park search mode. But the price is actually higher for such machines.

All Metal

This is a classic zero discrimination mode that allows the detectorist to register all metal objects under the coil, including trash. However, this mode is valuable when the data on the potential target is unclear.


This mode filters off all ferrous items, thus eliminating the signals caused by trash and worthless objects.


Delta 4000 will offer the following features to the user:

These features, not being very demanding in terms of setting, increase the efficiency of search, and give the user minimal control over sensitivity of the device.

The Kit

The kit includes:


The majority of real customers around the world appreciates two main things about this metal detector. The first thing is the fact that the learning curve is not steep at all; the beginner detectorist just has to manage simple settings and he’s good to go. The second is the correlation of price and features, which is pretty fair. You get what you see, and do not have to pay for bells and whistles. Teknetics Delta 4000 is the basics every noob will be able to take advantage of – easy to use and bringing real finds.

Teknetics Delta 4000

Teknetics Delta 4000 Very simple and budget friendly detector


Michael Moore

Hi detectorists! I’m Michael Moore, founder of this website, and a dedicated treasure hunter since 2013. If you want to be posted about the most recent news and updates in metal detecting, releases, and trends, subscribe!

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